/*
 * @Descripttion: 
 * @Author: liuYaoYu
 * @Date: 2021-11-14 19:14:29
 * @LastEditors: liuYaoYu
 * @LastEditTime: 2021-11-14 19:36:43
 */
export const as = '123'

let foo = (a: number, b: number): number => a + b


foo(1, 2)
foo(2, 3)